Car-roof.



W. P. MURPHY.

GAR ROOF.

APPLICATION mum AUG. 10,1910.

3 BEEETS-SEEET 1.

QWITNES'ES A w' a INVEbOR I Patented May 16, 1911.

W. P. MURPHY.

GAR- ROOF.

APPLICATION FILED AUG. 10, 1910.

Patented May 16, 1911.

3 SHEETS-SHEET 2. 5 N

swv WW 7 d N NNg [1V VEN TOR 1 W. P. MURPHY.

' CAR ROOF.

APPLICATION mum we. 10, 1910.

Patented Ma 16, 1911.

V 3 SHEETSSHEET 3.

kiw /v55 ES w I VE TO'R 45; W. v Afiom WALTER r. Moarrmorcmcaeo, ILLINOIS.

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Specification of Letters Patent. i Patented Blay 16, 19'1L Application filed new 10,1910. Serial No. 576,545. I

To all whom it may concern:

Be it known that I, WALTER P. M RPHY, a citizen of the United .States, residing at Chicago, county of Cook, and State'bflllijnois, have invented certain new and useful Improvements in Car-Roofs, the,

following is a specification.

a car roof of a construction that ivill'.increasethe rigidity of the roof structure;

' tooincrease the head room, distribute the and, Fig. 10 is aside elevation ofthe c'arline;

wearing area of the sheets, which sheets extend from cave to cave, andefl'ect a saving of material at the margins of the sheets.

In the drawing, Figure I is "a. top plan view of a car, broken away; Fig. 2 is a trans verse seotional'view of the same on the line 2.2;'Fig. 3 is a sectionaldetail View on the line 3-3, Fig. 1; Fig; 4 is a detail sectional view on the line 44, Fig, 1; Fig. 5, is a detail sectional view on the line 55, Fig. '2,

parts being in elevation; Fig. 6 is a side elevation of the same; Fig. 7 is a perspective'view of a purlin according to invention; Fig. 8 is a top plan view ofthe same; Fig. 9 is a side elevationofthe same":

A car roof constructed according to'my invention 1s composed of the carhnes 10,

purlins 11, roof sheets'12 and running boards:

13. The carlines are formed from commercial-ly formed tee or flanged metal-j which is bent to a suitable are togive the desired pitch to the roof toward the caves. The carli es are suitably secured at their ends to the 11 14.

14: is a fascia having a reduced upper portion against which the ends' of the roof sheets rest, the increased thickness of the fascia protecting the sheets and clips 30 against side scraping and cornicing. The purlins are constructed from commercially formed flanged channel metal, the'ends of which are spread laterally'beyond the'body lines into one plan'eas at 15, forming extended arms, lugs or cars 16, which'r'est on the base flange of the 'carlinesand with; the

portion 15 constitute an extended bearing for the purlins on the base flange of the carlines, thereby securing 'a bracing effect-on the carlines, thus increasing the rigidity of the roof structure throughout its entire area.

I Preferably, I provide the extended bearing of the purlins with three rivet holes whereby the ends of the purlins are very firmly secured'to the carhnes.

The object of constructing the purlins with an extended hearing at each end on' the lcarlinesisto distribute the diagonal strain cruei'oof frame evenly throughout the roof structure, thereby eliminating the twisting andwarping of the frame. "Byspreading' the ends of'the purlins beyond the body The object of my invention is to provide.

lines, Ij'obtain an extended bearing fortheni beyond their body lines without "employing any extra plates, rods, etc, and at the same time reducethe' number of rivets, bolts, etc, incident to the use of plates. The tensile and compression strength of.the purlins is in'oreasedby this construction, The "port1ons16, act as braces and resist and dis; tribute the twisting and warping movement of the roof structure, thus reducing the dam age to roof sheets incident tosuch motions ofacar.

y As shown in the drawings, the roof sheets 12 curve and extendjin'one sheet from cave to cave, therefore the carlines are, as shown,- of cont nuous curvature thereby tending to sheets totem at theridge.

The spreaded end of; he purlins consti tute seat-for a filler block 17-011 each side eliminate the tendency of the continuous :of'the canine and enable me to' employ a comparatively'high web on thecarline and at the same time have a comparatively low seam on the roof. The roof sheets 12 rest I on the purlinsand have their side edges 18' bent up against the sides/of the web of the carline as shown in Fig. '3, thus efiecting a saving of material at" the margins of the I sheets, represented by the usual rolled, flat orother seam;

19 is 'a'cap running from eave to cave of the car, fitting over the'top of the 'carline and embracing the upturned edges of the roofing sheets, as shown, td'prevent the entrance of the elements, cinders, etc., from entering the car.

Considerable difliculty has been experienced in securely anchoringthief-saddle 20 on the car'roof. I overcpme thisdifliculty by forming a hole through the web of the carline and, of course, through the upturned edges of theroofing'sheets and the cap, and passing therethrough the uefshaped bolt or clevis 21, the ends ofjthe [bolt 21 passing through'the' saddle, as shownin Fig. ,5;

'- -22'1s'a plate on top of the saddle having openings through which the ends of the bolt 21 bolt. From the construction shown, it will pass. 23 are nuts on the ends of said which the carline and roof seam fits.

be seen that Isecurely anchor the saddle 20 to the carline against any movement, thus eliminating all liability of its slipping. The runningboards' 13 are secured, in the usual *way to the saddlesQO. The under face of the saddle is provided with a groove 31 into the plane of the flanges at the ends of the purlin, the ends being spread laterally beyond the body lines of the purlin, therebysecuring a bracing effect when the ends are riveted to tl1e',flange of the carline, and an increase in head room is 'obtained.

2, In a car roof, the combination with flanged carlines, of purlins of flanged channel metal, the channel being of less height than the \veb of the carline and brought into the plane of the flanges at the ends of the purlin. the ends of the purlin being spread laterally on each side beyond the body lines of the purlin, thereby securing a bracing effeet when the ends are secured to the flange of the carline.

3. In a car roof, the combination with flanged car-lines, of purlins of flanged channel metal, the channel being of less height than the Web of the carline and brought into the plane of the flanges at the ends of the purlin, the ends of the purlin being spread laterally on each side beyond the body lines of the purlin, thereby securing a bracing effeet when the ends are secured to the carline, and roofing sheets extending from eave to eave of the car and supported by the pur- 'lins with their edges bentup against the sides of the carline, whereby a low seam is obtained and a cap extending from eave to eave and covering the top and sides of the Copies of this patent may he obtained for cured in said opening and passing through the saddle and secured thereto firmly.

- 5. In a car roof, the combination with, a flanged carline having an opening in one of its flanges, roo'f sheets, the side edges of which are bent up against said flange, and a cap covering the top and sides ofsaid flange of the carline and the upturned edges of the roof sheets, said cap and edges having an opening registering withthe opening in the said flange of the carline, of a running board saddle having a groove in its under face to receive said flange cap and upturned edges, and a U-shaped bolt secured in said openings in the said edges, cap and said flange with its endspassing through the saddle and suitably secured thereto whereby the saddle is anchored against shifting.

6. In a car roof,'the combination with a flanged carline having anopefling in one of its flanges, roof sheets, the side edges of which are bent up a ainst said flange, of

a running board sadd e having a groove in itsunder face to receive said flange and the upturned edges of the roof sheets, anda shaped bolt secured in said openings in said edges and flange with its ends passing through the saddle and suitably secured thereto, whereby the saddle is anchored against shifting.

In testimony whereof I afiix my signature in presence of two witnesses.

WALTER P. MURPHY.

Witnesses:

HARRY W.'STANNARD, 7 J OSEPHINE A. HART n'rr.

five cents each, by addressing" the Commissioner of Patents, Washington,'D. 0. 

